Combustion-chamber for sulfur-burners



F. B. CHAPPELL.

COMBUSTION CHAMBER FOR SULFUR BURNERS.

APPLICATION F lLED APR.20. 1920.

Patented J 11113 21, 1921.

hymen/or Fred 5. C/ia a oefl UNITED STATES PATENT; OFFICE.

FRED IB. CHAPPELL, OF GLENS FALLS, NEW YORK, ASSIGNOR 0F ONE-HALF TOGLENS FALLS MACHINE WORKS, OF GLENS FALLS, NEW YORK.

COMBUSTION-CHAMBER FOR SULFUR-BURNERS.

Specification of Letters Patent. Patented June 21 1921 Application filedApril 20, 1920. Serial No.. 375,391.

T 0 all whom it may concern:

Be it known that I, F RED B. CHAPPELL, a citizen of the United States ofAmerica, and resident of the city of Glens Falls, in the State of NewYork and United States of America, have invented certain new and usefulImprovements in Combustion-Chambers for Sulfur-Burners, of which thefollowing is a full, clear and exact description.

This invention relates to improvements in combustion chambers for sulfurburners, and the object is to provide a combustion chamber in which airis very thoroughly mixed with sulfur vapor, thus avoiding sublimation.

A further object is to provide a combustion chamber permitting the useof greater draft than heretofore, thereby increasing the capacity of theapparatus proportionately to its size.

The device consists briefly of a metal tank, preferably cylindrical,lined with refractory material and containing a baffle wall. A vaporinlet is provided axially out of normal with the baffle wall and a vaporoutlet is provided on the opposite side of the baffle wall.

In the drawings which illustrate the invention:

Figure 1 is a plan view of the device, illustrating its relation toother parts of the apparatus.

Fig. 2 is a partial sectional view on the line 2-2, Fig. 1.

Fig. 3 is a partial sectional view on the line 3-3, Fig. 1.

Referring more particularly to the drawings, 11 designates thecombustion chamber of a sulfur burning apparatus, in which the sulfur isburned, provided with an antisublimation or ventilating sleeve 12, and13 designates a combustion chamber, forming the subject matter of thisinvention, provided with an inlet sleeve 14 alined with the sleeve 12and with an outlet sleeve 15 located at any suitable angle to the inletsleeve but preferably at an angle of 135 thereto.

The combustion chamber 13 comprises a metal shell 16, preferably 0lindrical, containing a complete lining 1 of refractory material, suchas fire brick. Thelining is spaced at the sides and top from the shelland the space filled with asbestos or other insulating material 18. Abailie wall 19 is provided in thechamber extending diametrically fromside to side and from top to bottom. This wall is preferably constructedof refractorymaterial such as a good quality of fire brick. The upperpart of the wall is built in the manner known as checker-work thusleaving apertures 20 through the wall for the passage of vapor from sideto side thereof- It will be noted that these apertures are considerablyabove the inlet and also that the wall is disposed out of normal to theaxis of the inlet sleeve and preferably at an angle of 45 thereto. Anysuitable clean-outs 21 may be provided on each side of the wall 19.

The operation of the deviceis as follows Sulfur is burned in the device11 and the vapor flows through the sleeves 12 and 14: into thecombustion chamber 13. Air is mixed with the vapor during its passagethrough the sleeve 12. The mixture of burning sulfur vapor and airimpinges on the wall 19 at an angle so that it is deflected against thecurved surface of the chamber wall and thus acquires a swirling movementwhich insures thorough mixing of the vapor and air. The mixture is drawnby the draft upwardly and through the openings 20 which break up thevapor into small streams, thus further perfecting the mixing with air.The gas then flows down and out through the sleeve 15 to agas conduit.The swirling motion imparted to the vapor and air and the breaking ofthe same up into numerous small streams so thoroughly mixes the air andvapor that combustion is complete and sublimation entirely avoided evenunder heavy draft. The combustion occurs largely on the inlet side ofthe wall and in any case is completely above the outlet so that no flamepasses through the outlet 15 into the gas conduit. The chamber beingconstructed of fire brick and insulated very little of the heatgenerated is lost by radiation.

While the device has been illustrated as circular it will be understoodthat the invention is not limited to this particular form nor to theparticular angle between the inlet and the baffle wall.

Having thus described my invention, what I claim is 1. A combustionchamber for sulfur burners comprising-an inclosing wall, inlet andoutlet passages, and a bafile wall arranged out of normal to the inletpassage to impart a swirling motion to the incoming stream of gas.

' 2. A device according to claim 1, in which the baffle wall is providedwith a plurality of small openings affording communication between inletand outlet passages.

3. A combustion chamber for sulfur burners comprising an inclosing wall,inlet and outlet passages through said wall, and a baffle wall betweensaid inlet and outlet passages, the baflle wall being arranged at suchan angle to the inlet passage and in such relation to the inclosing wallas to impart a swirling motion to an entering stream of gas.

4. A combustion chamber for sulfur burners comprising a metal shell, arefractory lining therefor, a refractory bafile wall, inlet and outletpassages located on opposite sides of said wall and out of axialalinement with one another and with the longitudinal axis of saidpassages disposed substantially at right angles to the longitudinal axisof the baffle wall, and a plurality of comparatively small passagesthrough said wall located out of alinement with the inlet and outletpassages.

5. A device according to claim 4:, in which the inlet passage isarranged axially out of normal with the bafi'le wall to impart aswirling motion to an entering stream of gas.

6. A device according to claim 4, in which the shell and lining arecylindrical and of greater height than diameter, the inlet and outletbeing located adjacent the bottom and the bafiie wall locateddiametrically of the shell and at an angle of approximately 45 to theaxis of the inlet passage, and a plurality of small passages in theupper part of said bafiie wall affording communication between the inletand outlet passages.

7. A combustion chamber comprising an inclosing wall, inlet and outletpassages extending through said wall and arranged to extend at an angleto one another and a partition wall between said inlet and outletextending transversely of the outlet and tangentially of the inlet.

Infl witness whereof I have hereunto set my han FRED B. CHAPPELL.

